20 
of the two species of migratory Cuckoos in New Zealand 
(Eudynamis taitensis and Chrysococcyx lucidus, see Case II. 
Nos. 2 and 41). It builds an ingenious domed nest, and 
often with a porch or vestibule. There is much variety in 
this structure, as will be seen from the woodcuts on p. 19. 
Fam. PARIDiE. 
Genus CERTHIPARUS. (Peculiar to New Zealand.) 
Certhiparus nova5 zealandiae, Gmel. New-Zealand Creeper. 
(Case II. Nos. 7 and 8, male; Case X. No. 3, young 
male.) 
Pam, TIMELIIDiE. 
Genus CLITONYX. (Peculiar to New Zealand.) 
1. Clitonyx albicapilla, Less. White-head. “ Popokotca.” 
(Case IX. Nos. 3 and 4.) 
Fifteen years ago this bird was plentiful all over the North 
Island; now it is nearly extinct on the mainland, and only 
met with occasionally on the islands. 
2. Clitonyx ochrocephala, Gmel. Yellow-head. (Case II. 
Group, Nos. 26, 31, and 32.) 
Ihis bright-coloured bird is the southern representative 
